Interesting, seems like it confuses the game. Cause on one hand there do exist units that are 3 power or less so the ability should be active. But on the other hand those targets are behind a defender so the ability doesn't really have any valid targets therefore shouldn't be active.
then game goes bzrp and disconnects.
I never got to witness this though (I don't play SY so yeh). Would be logical that Dettlaff would have the same issue if it's up to that (but why play Dettlaff in the 1st place? xD).